ID: 2956

AQSQID: 211110080

Site Name: Carrithers Middle School

Added: April 21, 2020, 6:24 p.m.

Updated: Feb. 26, 2021, 4:31 p.m.

Location: Louisville (Michaele Lane), KY

Reporting: True, Located: True

Current AQI: 34.0

Louisville (Michaele Lane) KY, US: 38.1825, -85.5744

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 5.8 μg/m3 (25) 34.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.5 μg/m3 (9) 6.1 μg/m3 (26) 35.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.6 μg/m3 (9) 6.4 μg/m3 (27) 35.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.5 μg/m3 (10) 6.6 μg/m3 (28) 34.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.2 μg/m3 (11) 7.2 μg/m3 (31) 35.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 10.1 μg/m3 (10) 6.8 μg/m3 (29) 33.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.2 μg/m3 (10) 5.9 μg/m3 (25) 29.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 27.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.6 μg/m3 (9) 5.8 μg/m3 (25) 31.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.2 μg/m3 (9) 5.4 μg/m3 (23) 33.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.4 μg/m3 (9) 5.3 μg/m3 (23) 31.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.9 μg/m3 (9) 5.2 μg/m3 (22) 31.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) 3.7 μg/m3 (16) 16.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 3.2 μg/m3 (14) 14.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 2.7 μg/m3 (12) 12.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) 3.3 μg/m3 (14) 14.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 6.1 μg/m3 (26) 26.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.2 μg/m3 (22) 18.6 μg/m3 (65) 65.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 25.5 μg/m3 (24) 20.6 μg/m3 (69) 69.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.8 μg/m3 (24) 20.4 μg/m3 (69) 69.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.5 μg/m3 (24) 19.7 μg/m3 (67) 67.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.4 μg/m3 (24) 19.7 μg/m3 (67) 67.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.3 μg/m3 (22) 18.1 μg/m3 (64) 64.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 17.7 μg/m3 (63) 63.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.5 μg/m3 (23) 17.9 μg/m3 (64) 64.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.2 μg/m3 (27) 18.7 μg/m3 (65) 65.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.8 μg/m3 (21) 14.1 μg/m3 (56) 56.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 4.6 μg/m3 (20) 20.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (19) 9.7 μg/m3 (41) 41.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) 9.8 μg/m3 (41) 41.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (19) 8.8 μg/m3 (37) 37.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 7.7 μg/m3 (33) 33.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) 6.7 μg/m3 (28) 28.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 14.7 μg/m3 (14) 6.1 μg/m3 (26) 47.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 6.1 μg/m3 (26) 26.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 4.7 μg/m3 (20) 20.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 4.9 μg/m3 (21) 21.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) 5.1 μg/m3 (22) 22.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) 4.6 μg/m3 (20) 20.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 4.6 μg/m3 (20) 20.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.6 μg/m3 (18) 4.9 μg/m3 (21) 21.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) 5.1 μg/m3 (22) 22.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.3 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (17) 5.3 μg/m3 (23) 23.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (17) 7.5 μg/m3 (32) 32.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.2 μg/m3 (22) 22.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (19) 8.4 μg/m3 (36) 36.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (17) 5.1 μg/m3 (22) 22.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 3.1 μg/m3 (13) 13.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) 1.7 μg/m3 (8) 8.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) 1.8 μg/m3 (8) 8.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 1.8 μg/m3 (8) 9.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (11) 2.8 μg/m3 (12) 12.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) 3.3 μg/m3 (14) 14.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) 4.1 μg/m3 (18) 19.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.5 μg/m3 (24) 4.6 μg/m3 (20) 24.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) 4.6 μg/m3 (20) 20.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.2 μg/m3 (14) 4.8 μg/m3 (20) 20.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 4.2 μg/m3 (18) 18.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 3.9 μg/m3 (17) 17.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 3.7 μg/m3 (16) 16.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 3.7 μg/m3 (16) 16.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (19) 15.9 μg/m3 (59) 59.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.4 μg/m3 (25) 19.9 μg/m3 (68) 68.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) 18.6 μg/m3 (65) 65.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (20) 15.8 μg/m3 (59) 59.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.8 μg/m3 (20) 16.8 μg/m3 (61) 61.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.9 μg/m3 (23) 18.8 μg/m3 (66) 66.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.6 μg/m3 (20) 18.1 μg/m3 (64) 64.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.6 μg/m3 (19) 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (18) 15.2 μg/m3 (58) 58.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) 15.8 μg/m3 (59) 59.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.9 μg/m3 (18) 16.2 μg/m3 (60) 60.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) 15.4 μg/m3 (58) 58.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.9 μg/m3 (19) 15.8 μg/m3 (59) 59.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 14.8 μg/m3 (57) 57.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 6.1 μg/m3 (26) 26.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.8 μg/m3 (25) 25.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 10.9 μg/m3 (46) 46.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) 10.7 μg/m3 (45) 45.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (15) 11.3 μg/m3 (48) 48.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) 11.8 μg/m3 (50) 50.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (17) 12.9 μg/m3 (53) 53.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) 14.1 μg/m3 (56) 56.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (17) 14.4 μg/m3 (56) 56.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) 14.6 μg/m3 (57) 57.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (17) 14.9 μg/m3 (57) 57.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) 14.8 μg/m3 (57) 57.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (17) 14.3 μg/m3 (56) 56.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.7 μg/m3 (17) 14.5 μg/m3 (57) 57.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) 14.9 μg/m3 (57) 57.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) 14.7 μg/m3 (57) 57.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 17.8 μg/m3 (63) 63.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (19) 16.9 μg/m3 (62) 62.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.7 μg/m3 (22) 18.9 μg/m3 (66) 66.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) 20.5 μg/m3 (69) 69.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 22.2 μg/m3 (73) 73.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 23.3 μg/m3 (22) 17.7 μg/m3 (63) 63.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) 11.3 μg/m3 (48) 48.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 11.1 μg/m3 (47) 47.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) 10.8 μg/m3 (46) 46.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) 10.3 μg/m3 (43) 43.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 10.9 μg/m3 (46) 46.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.6 μg/m3 (16) 12.7 μg/m3 (53) 53.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.3 μg/m3 (17) 14.2 μg/m3 (56) 56.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.1 μg/m3 (17) 14.7 μg/m3 (57) 57.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 20.2 μg/m3 (69) 69.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.3 μg/m3 (32) 29.0 μg/m3 (87) 87.0
 
Feb. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.1 μg/m3 (38) 34.4 μg/m3 (98) 98.0
 
Feb. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (34) 31.1 μg/m3 (91) 91.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.1 μg/m3 (34) 30.9 μg/m3 (91) 91.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.1 μg/m3 (33) 29.8 μg/m3 (89) 89.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (39) 36.5 μg/m3 (104) 104.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.1 μg/m3 (41) 38.6 μg/m3 (109) 109.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.8 μg/m3 (41) 38.1 μg/m3 (108) 108.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.5 μg/m3 (42) 37.9 μg/m3 (107) 107.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.3 μg/m3 (35) 32.4 μg/m3 (94) 94.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.1 μg/m3 (36) 30.8 μg/m3 (91) 91.0
 
Feb. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.5 μg/m3 (33) 28.9 μg/m3 (87) 87.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.3 μg/m3 (27) 23.7 μg/m3 (76) 76.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) 17.7 μg/m3 (63) 63.0
 
Feb. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (19) 15.3 μg/m3 (58) 58.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) 17.8 μg/m3 (63) 63.0
 
Feb. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 18.0 μg/m3 (64) 64.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (20) 15.2 μg/m3 (58) 58.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 15.1 μg/m3 (58) 58.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.6 μg/m3 (24) 18.2 μg/m3 (64) 64.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.1 μg/m3 (28) 18.7 μg/m3 (65) 65.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.1 μg/m3 (30) 23.1 μg/m3 (75) 75.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.4 μg/m3 (31) 24.6 μg/m3 (78) 78.0